FICO Score
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What Is a FICO Score?
A FICO Score is a credit score created by the Fair Isaac Corporation (FICO). Ranging from 300 to 850, it is the standard measure of consumer credit risk used by 90% of top lenders to determine a borrower's creditworthiness.
The FICO Score is the gold standard of credit scoring in the United States. Introduced in 1989 by the Fair Isaac Corporation, it creates a numerical summary of a consumer's credit files. Before FICO, lending decisions were often subjective and inconsistent. FICO provided an objective algorithm to assess risk. Lenders—including banks, credit card issuers, and mortgage companies—buy your FICO score from the credit bureaus to decide two things: 1. Approval: Should we lend to this person? 2. Pricing: What interest rate should we charge? A score above 740 is generally considered "Very Good" and qualifies for the best rates. A score below 580 is "Poor" and makes borrowing difficult or expensive.
Key Takeaways
- FICO Scores range from 300 (poor) to 850 (exceptional).
- It is calculated based on credit report data from Equifax, Experian, and TransUnion.
- The most important factor is Payment History (35% of the score).
- Higher scores result in lower interest rates on loans and mortgages.
- Lenders use it to predict the likelihood that a borrower will default.
How It Is Calculated (The 5 Factors)
The FICO formula is a secret, but the weights of the five main factors are public: 1. Payment History (35%): Do you pay on time? Late payments, bankruptcies, and defaults hurt this the most. 2. Amounts Owed (30%): How much debt do you have relative to your credit limits? (Credit Utilization Ratio). Keeping this under 30% is key. 3. Length of Credit History (15%): How long have your accounts been open? Older accounts are better. 4. Credit Mix (10%): Do you have a mix of revolving credit (credit cards) and installment loans (mortgages, auto loans)? A mix is better. 5. New Credit (10%): Have you applied for a lot of credit recently? "Hard inquiries" can temporarily drop your score.
Real-World Example: The Cost of a Low Score
Two friends, Alex (760 FICO) and Ben (640 FICO), apply for a $300,000 30-year fixed mortgage.
FICO vs. VantageScore
The two main scoring models.
| Feature | FICO Score | VantageScore |
|---|---|---|
| Market Share | Used by 90% of lenders | Used by ~10% (growing) |
| Creator | Fair Isaac Corp | Joint venture of the 3 Credit Bureaus |
| Scoring Range | 300 - 850 | 300 - 850 (older versions differed) |
| Requirement | Requires 6 months of credit history | Scores with less/newer history |
FAQs
Many banks and credit card issuers (like Bank of America, Chase, Amex, Discover) provide your FICO score for free on your monthly statement or online portal. Be careful with "free credit score" websites; they often provide a VantageScore, which can differ from the FICO score lenders use.
No. Checking your own score is a "soft inquiry." It has zero impact on your credit score. Only "hard inquiries" (when a lender checks your credit for a loan application) can slightly lower your score.
It depends on the negative factor. High utilization (maxed-out cards) can be fixed in 30 days by paying down the balance. Late payments, however, stay on your report for 7 years, though their impact fades over time.
You have three main scores—one from each bureau (Equifax, Experian, TransUnion)—because the data in their files might differ slightly. Also, there are different versions of FICO (FICO 8, FICO 9, FICO 10T) and industry-specific versions (FICO Auto Score, FICO Bankcard Score).
The Bottom Line
In the modern economy, your FICO Score is arguably your most important financial asset. It acts as a gatekeeper to housing, transportation, and affordable credit. By understanding the five factors that drive the score—especially payment history and utilization—consumers can actively manage their profile to unlock significant lifetime savings. While it reduces a complex financial life to a three-digit number, playing the FICO game correctly is essential for financial health.
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At a Glance
Key Takeaways
- FICO Scores range from 300 (poor) to 850 (exceptional).
- It is calculated based on credit report data from Equifax, Experian, and TransUnion.
- The most important factor is Payment History (35% of the score).
- Higher scores result in lower interest rates on loans and mortgages.